The Sig Sauer P250 was designed specifically to address the future needs of the military and law enforcement professionals around the world. The innovative design of the removable steel frame housed in a polymer grip module allows agencies and units to change caliber, pistol size (subcompact, compact and full), trigger length and grip size without changing the issued serial number. The steel frame controls the rearward motion of the slide- not the polymer grip, as in other pistols. The result is both outstanding accuracy and reliable functionality even with laser/light accessories mounted to the polymer grip's accessory rail.